Organophosphorus compounds for flame retardant polyurethane foams
US9738766B2 · kind B2 · utility
0Cited by
7References
11Claims
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Key dates
| Filing date | Oct 8, 2012 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Mar 9, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An organophosphorus compound useful in a phosphorus containing flame retardant and a flame retardant polyurethane foam, where the organophosphorus compound is shown in Formula (I) where Y is selected from the group consisting of an —OH group, an —NH2 group, an —NHR3 group, and an —SH group, where R3 is a monovalent hydrocarbyl group having 1 to 10 carbon atoms; R is a divalent hydrocarbyl group; X is a heteroatom group; and R1 and R2 are each independently a substituted or unsubstituted hydrocarbyl group, wherein R1 and R2 can be optionally joined to form a ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.